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Conductive polymer composite structure

a composite structure and polymer technology, applied in the direction of electrolytic capacitors, transportation and packaging, synthetic resin layered products, etc., can solve the problems of difficult formation of conductive polymers on the conductive substrate, and achieve good deformation properties

Inactive Publication Date: 2006-06-15
EAMEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is about conductive polymer composite structures and a process for producing them. These structures have good deformation properties and conductivity, making them suitable for use as larger actuator elements. The composite structures can apply potential to whole elements even when they are elongated in size. The process involves immersing electrode holders in an electrolytic solution and combining conductive polymers and conductive substrates through electrochemical polymerization. The working electrodes can have coiled conductive substrates, which helps to form conductive polymers on the substrates. The invention solves problems of high resistance and difficulty in forming conductive polymers on conductive substrates."

Problems solved by technology

When conductive substrates which are said working electrodes are coiled, resistance gets large since metal wires are thin and long, and the larger the conductive substrates get, the less potential transmission becomes, causing the problem of difficulty in forming conductive polymers on the conductive substrates.

Method used

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Examples

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Effect test

example 1

[0136] Electrolytic solution was prepared by dissolving pyrrole which is a monomer and a dopant ion salt as shown in Table 1 into medium stated in Table 1 by a publicly known stirring method. This electrolytic solution has monomer concentration of 0.25 mol / l and the dopant salt in Table 1 is 0.5 mol / l. Conductive polymer composite structures of Example 1 having the shapes shown in Table 1 were obtained by using this electrolytic solution and by conducting electrochemical polymerization with constant current methods with the current density of 0.2 mA / cm2 by setting working electrodes and counter electrodes. As said working electrodes, conductive substrates shown in Table 1 (metal mesh, trade name “Au Ami 0.1 mmφ, 100 mesh”, manufactured by Tokuriki Honten Co., Ltd) were used. As said counter electrodes, commercially available Pt electrodes were used. In addition, in the tables, “-” shows that there were no appropriate matters,

example 2

[0137] Conductive polymer composite structures of Example 2 were obtained in the same way as in Example 1, except that conductive substrates of Table 1 (metal mesh, Ni mesh (0.05 mmφ, 200 mesh) manufactured by Rare Metallic Co., Ltd.) were used.

examples 3 to 8

[0138] Conductive polymer composite structures of Examples 3 to 8 were obtained in the same way as in Example 1, except that conductive substrates which were coiled spring members of Tables 1 and 2 were used and that the solvent and dopant salt of Table 1 or 2 were used. In addition, as coiled spring members used in Example 3, spring members formed as a characteristic of Table 1 were used by using “Ni wire, wire diameter 0.10 mmφ” (manufactured by Rare Metallic Co., Ltd.) and as coiled spring members used in Example 4, trade name “SUS / Ni plated coil, outer diameter 0.5 mmφ, wire diameter 40 mmφ, pitch 110 μm” (manufactured by Nippon cable system Inc.) were used. As coiled spring members used in Example 5, “Pt / w coil, outer diameter 0.5 mmφ, wire diameter 40 μmφ, pitch 110 μm” (manufactured by Nippon cable system Inc.) were used. And in Examples 6 and 8, “W coil, outer diameter 0.25 mmφ, wire diameter 0.03 mm, pitch 60 μm” (manufactured by Nippon cable system Inc.) were used. In Exam...

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Abstract

In order to obtain actuator elements capable of being displaced such as expansion and contract or bending for practical use even when used as actuator elements with larger size, stacked layers or bundles in which conductive polymer-containing layers or fiber-like tubes are provided with conductive polymer composite structures which include conductive substrates and conductive polymers, said conductive substrates have deformation property, and conductivity of said conductive substrates is not less than 1.0×103 S / cm are used.

Description

FIELD OF THE INVENTION [0001] The present invention relates to conductive polymer composite structures in which conductive polymers and conductive substrate are composite, process for producing the same, process for producing conductive polymers, bundles and stacked layers of conductive polymer composite structures. BACKGROUND ART [0002] Conductive polymers such as polypyrrole and the like are known to have electrochemomechanical deformation, phenomena of expansion and contraction by electrochemical redox reaction. Recently, this electrochemomechanical deformation of conductive polymers has been attracting public attention, because this is expected to be applied for the use of artificial muscles, robot arms, artificial arms, actuators and the like and applications not only for smaller equipments such as for micro machines and the like, but also for larger machines have been attracting public attention as well. [0003] As a process for producing conductive polymers, a process by elect...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01G9/00C25D11/00F16F15/00
CPCF16F15/005Y10T428/32Y10T29/417Y10T428/325Y10T428/31504Y10T428/31551
Inventor ZAMA, TETSUJIHARA, SUSUMUSEWA, SHINGO
Owner EAMEX
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